Version 1
: Received: 9 January 2024 / Approved: 10 January 2024 / Online: 10 January 2024 (11:08:27 CET)
How to cite:
Han, J.; Kim, H. W. Understanding the Ge@GeO2-C Composite Anode via a Simple High-Energy Ball-Milling Process for Li-Ion Batteries. Preprints2024, 2024010787. https://doi.org/10.20944/preprints202401.0787.v1
Han, J.; Kim, H. W. Understanding the Ge@GeO2-C Composite Anode via a Simple High-Energy Ball-Milling Process for Li-Ion Batteries. Preprints 2024, 2024010787. https://doi.org/10.20944/preprints202401.0787.v1
Han, J.; Kim, H. W. Understanding the Ge@GeO2-C Composite Anode via a Simple High-Energy Ball-Milling Process for Li-Ion Batteries. Preprints2024, 2024010787. https://doi.org/10.20944/preprints202401.0787.v1
APA Style
Han, J., & Kim, H. W. (2024). Understanding the Ge@GeO2-C Composite Anode via a Simple High-Energy Ball-Milling Process for Li-Ion Batteries. Preprints. https://doi.org/10.20944/preprints202401.0787.v1
Chicago/Turabian Style
Han, J. and Hyun Woo Kim. 2024 "Understanding the Ge@GeO2-C Composite Anode via a Simple High-Energy Ball-Milling Process for Li-Ion Batteries" Preprints. https://doi.org/10.20944/preprints202401.0787.v1
Abstract
To address the limitations of the current anodes of Li+-ion batteries (LIBs), a Ge/GeO2/Carbon (Ge@GeO2-C) composite was designed by introducing a high-energy ball-milling process for advanced LIBs. Ge@GeO2-C is prepared and characterized by XPS, XRD, SEM, and TEM, which facilitate synthesis and provide controllability with respect to milling time. Interestingly, as the ball-milling time increased, the proportion of metallic Ge increased during the carbon thermal reduction reaction. The electrochemical characteristics of Ge@GeO2-C are assessed using differential capacity analysis (dQ/dV) and galvanostatic charge-discharge techniques to confirm its viability as an anode material in LIBs. The results demonstrated decent initial and secondary capacities of approximately 1800 mAh g-1 (for the first cycle) and 838 mAh g-1 (for the second cycle) at a rate of C/60 by the reaction between Ge and the Li-Ge complex. Furthermore, postmortem characterization was performed to gain an understanding of the material, suggesting future prospects for advanced LIBs.
Keywords
Li+ ion batteries; Ge anode; Alloy
Subject
Chemistry and Materials Science, Electrochemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
